ADAC: Digital mirrors not yet fully developed

Camera systems in modern vehicles can provide more safety and comfort. However, the ADAC points out that these systems not only offer opportunities but also come with risks and cost traps. Especially in vehicles with limited visibility, front, rear, or 360-degree cameras significantly facilitate parking and maneuvering. Since 2000, the Autoclub has been evaluating the visibility from cars in their car tests: Out of over 3000 vehicles tested since then, only 20 received a rating of "very good" and 121 a rating of "good." The USA has already responded to this development, with rearview cameras being mandatory in new cars since 2018.

Some manufacturers are now using digital side or rearview mirrors alongside all-around cameras to improve visibility, among other things, by offering a larger field of view. The rearview via camera is also clear when the actual view is obstructed by passengers or luggage. Digital rearview mirrors are also helpful in transporters or campers, which often do not have a rear window. Unlike a rearview camera, the image is displayed directly in the mirror and is always visible.
 

Often Unfavorable Positioning

Virtual exterior mirrors are intended to reduce aerodynamic drag due to smaller cameras, while also minimizing the blind spot. However, the displays in the door trim are often positioned unfavorably, and there is no way to enlarge the field of view by changing the head position. Additionally, depth perception on displays is significantly limited, making distance estimation difficult. For glasses wearers, these systems pose additional risks as reflections and glare on the displays can impair vision.

High Repair Costs

A central risk of camera-based systems lies in the high repair costs that can arise even in minor parking bumps. The externally mounted cameras are often exposed and vulnerable to the slightest collisions. A light contact with a bollard can be enough to damage the sensitive camera systems. Often, a complete replacement of the camera unit, including lens, sensor, and housing, is necessary. This replacement can quickly run into hundreds of euros, especially if extensive calibration with special diagnostic equipment is required afterward. Additionally, although partial insurance covers glass damage, it generally does not cover damage to camera lenses.